10-item assessment of activities of daily living (Mahoney & Barthel 1965).

What it is and when to use it

The Barthel Index is an ordinal scale that measures the degree of functional independence across ten basic activities of daily living: feeding, bathing, grooming, dressing, bowel control, bladder control, toilet use, bed-to-chair transfers, mobility on level surfaces, and stair climbing. It is scored from 0 to 100 (in increments of 5 in the classic version) and is used to quantify disability, plan rehabilitation, and track functional change, particularly in stroke, older adults, and neurological disease. It is one of the most widely used functional outcome measures in rehabilitation and stroke care pathways.

How to interpret it

The total score ranges from 0 (total dependence) to 100 (full independence). A widely used descriptive banding is: 0-20 total dependence, 21-60 severe dependence, 61-90 moderate dependence, 91-99 mild dependence, and 100 independence. Change should be interpreted in clinical context; absolute values matter, but trends over time and the trajectory of individual items are often more informative than any single cut-off.

Limitations and when not to use it

Validated primarily in stroke patients, older adults, and people with physical disability in hospital and rehabilitation settings. It assesses only basic activities (self-care and mobility) and does NOT capture instrumental activities (cooking, managing medication or finances, shopping), cognitive function, mood, communication, or pain. It shows a ceiling effect in patients with good physical function but cognitive impairment, who may score high despite needing supervision. The score reflects what the patient actually does, not what they could potentially do.

Frequently asked questions

What is the difference between the Barthel Index and the Lawton scale?

The Barthel Index measures basic activities of daily living (self-care and mobility), whereas the Lawton-Brody scale assesses instrumental activities such as cooking, shopping, or managing medication. They are often used together as complementary tools.

What is considered a good Barthel Index score?

A score of 100 indicates full independence in basic activities, and scores of 91-99 reflect mild dependence. However, 100 does not mean the person can live alone, because instrumental activities and cognition are not assessed.

Does the Barthel Index measure cognitive impairment?

No. The Barthel Index only assesses physical independence in self-care and mobility. Assessing cognition requires a dedicated tool such as the MMSE or MoCA.